This file 03_ReadMe_Brienne_Collection_letterlocking_data.txt was generated on 2020-11-10 by JANA DAMBROGIO and DANIEL STARZA SMITH. 

GENERAL INFORMATION

1. Title of Dataset: “03 Brienne Collection letterlocking data.” https://doi.org/10.7910/DVN/EIHXVE, Harvard Dataverse.

2. Author Information 
        A. Principal Investigators (Letterlocking) Contact Information
                Name: Jana Dambrogio and Daniel Starza Smith (Unlocking History)
                Institution: Massachusetts Institute of Technology and King’s College London
		Addresses: 77 Massachusetts Avenue, Building 14-0513, Cambridge, MA 02139, USA; and, English Department, King’s College London, Virginia Woolf Building 7.15, 22 Kingsway, London, WC2B 6LE, United Kingdom.
                Email: jld@mit.edu, daniel.s.smith@kcl.ac.uk 

        B.  Principal Investigators (Algorithm) Contact Information
		Name: Amanda Ghassaei, Holly Jackson, Erik Demaine, Martin Demaine
   		Institution: Massachusetts Institute of Technology
                Address: 77 Massachusetts Avenue, Cambridge, MA 02139, USA
		Email: amanda.ghassaei@cba.mit.edu, hjackson@mit.edu, edemaine@mit.edu, mdemaine@mit.edu  

        C. Principal Investigators (X-ray micro-tomography – XMT) Contact Information
                Name: Graham Davis and David Mills
                Institution: Queen Mary, University of London
                Address: Dentistry, Francis Bancroft Building, Mile End Campus, London E1 4NS
                Email: g.r.davis@qmul.ac.uk, d.mills@qmul.ac.uk 

        D. Principal Investigators (Signed, Sealed, and Undelivered research team) Contact Information
		Name: Rebekah Ahrendt
		Institution: Utrecht University, Department of Media and Culture Studies
		Address: Muntstraat 2A, 3512 EV Utrecht, The Netherlands
		Email: r.s.ahrendt@uu.nl 

		Name: Nadine Akkerman
		Institution: Leiden University, English Department and Leiden University Centre for the Arts in Society (LUCAS), Leiden, Faculty of Humanities / English Literature
		Address: Witte Singel Complex, P.N. van Eyckhof 4, 2311 BV Leiden, The Netherlands.
		Email: n.n.w.akkerman@hum.leidenuniv.nl 

		Name: David van der Linden
		Institution: Radboud University, Faculty of Arts, Department of History, Art History and Classics
		Address: PO Box 9103, 6500 HD Nijmegen, The Netherlands.
		Email: d.vanderlinden@let.ru.nl 

		Name: Jana Dambrogio and Daniel Starza Smith, details as above.

3. Date of data collection (single date, range, approximate date): 
2013–2020.

4. Geographic location of data collection: 
The Hague, The Netherlands; London, United Kingdom; Cambridge, Massachusetts, United States of America. 

5. Information about funding sources that supported the collection of the data: 
The Signed, Sealed, and Undelivered project was supported by an Internationalization in the Humanities Grant from the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Dutch Research Council; project code 236-69-010); Metamorfoze; and Sound and Vision The Hague. Letterlocking research was supported by The Seaver Institute; MIT Libraries; the MIT Undergraduate Research Opportunity Program (UROP); The Gladys Krieble Delmas Foundation; The British Academy; The John Fell Fund at Oxford University Press; The Zilkha Fund at Lincoln College, University of Oxford; and three sources at King’s College London: the English Department; the International Collaboration Fund, Faculty of Arts and Humanities; and the King’s Undergraduate Research Fellow (KURF) scheme. Algorithm research received support from Adobe Research and sponsors of the MIT Centre for Bits and Atoms. 


SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: 
Digital images of Brienne Collection letters are reproduced and stored here by permission of Sound & Vision, The Hague. They can be accessed for non-commercial use under a Creative Commons Attribution–NonCommercial 3.0 License. Permission for commercial use must be sought from Sound & Vision, The Hague.
Letterlocking data about this collection can be accessed for non-commercial use under a Creative Commons Attribution–NonCommercial 3.0 License. Permission for commercial use must be sought from the Unlocking History Research Group.
Copyright © 2021-01-28 MASSACHUSETTS INSTITUTE OF TECHNOLOGY. Licensed under a Creative Commons Attribution 4.0 International License except where otherwise noted. 

2. Links to publications that cite or use the data: 
https://rdcu.be/cf4jH

3. Links to other publicly accessible locations of the data: 
N/a.

4. Links/relationships to ancillary data sets: 
This data is part of the Dataverse “Unlocking history through automated virtual unfolding of sealed documents imaged by X-ray microtomography,” which contains other datasets related to the findings in that article: https://dataverse.harvard.edu/dataverse/uharticle. 

5. Was data derived from another source? 
No.

6. Recommended citation for this dataset: 
Dambrogio, Jana; Starza Smith, Daniel; Ghassaei, Amanda; Jackson, Holly; Demaine, Erik; Demaine, Martin; Davis, Graham; Mills, David; Ahrendt, Rebekah; Akkeman, Nadine; van der Linden, David, 2020, "03 Brienne Collection letterlocking data.” https://doi.org/10.7910/DVN/EIHXVE, Harvard Dataverse.


DATA & FILE OVERVIEW

1. File/Dataset List: 
* File. Brienne_Letterlocking_Data_2021.pdf
* Dataset. "03 Brienne Collection letterlocking data: Spreadsheet and images folder 01/16, trunk and letters DB-0001–DB-874", https://doi.org/10.7910/DVN/EIHXVE, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 02/16, DB-0874_2–DB-0903", https://doi.org/10.7910/DVN/RFLIXK, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 03/16, DB-0904–DB-0987", https://doi.org/10.7910/DVN/TGMXFC, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 04/16, DB-0988–DB-1109_03", https://doi.org/10.7910/DVN/JFUVHQ, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 05/16, DB-1110–DB-1241_01", https://doi.org/10.7910/DVN/E8XEMQ, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 06/16, DB-1241_02–DB-1339_06", https://doi.org/10.7910/DVN/SXOLGY, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 07/16, DB-1339_07–1455_01", https://doi.org/10.7910/DVN/NGNL1S, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 08/16, DB-1455_02–DB-1564_01", https://doi.org/10.7910/DVN/ZL1EUA, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 09/16, DB-1564_02–DB-1658_01", https://doi.org/10.7910/DVN/2CPWNS, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 10/16, DB-1659_01–DB1745_02", https://doi.org/10.7910/DVN/2LDYSY, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 11/16, DB-1746_01–DB-1867_03", https://doi.org/10.7910/DVN/AKABMG, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 12/16, DB-1868–DB-1963_03", https://doi.org/10.7910/DVN/ZBKRYO, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 13/16, DB-1964_01–DB-2063_05", https://doi.org/10.7910/DVN/3VTHVI, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 14/16, DB-2064_01–2155_03", https://doi.org/10.7910/DVN/VHJ38I, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 15/16,  DB-2156_01 – DB2240_06", https://doi.org/10.7910/DVN/RELLI1, Harvard Dataverse
* Dataset. "03 Brienne Collection letterlocking data: Images folder 16/16, DB-2241_01–DB2293, DB-10011–10046, 90002–90010”, https://doi.org/10.7910/DVN/K4CLGE, Harvard Dataverse
* File. 03_ReadMe_Brienne_Collection_letterlocking_data.txt

2. Relationship between files, if important: 
Brienne_Letterlocking_Data_2021.pdf operates as the finding aid for these images: see column00. 
Datasets with titles beginning “03” contain images of Brienne Collection letters numbered sequentially. 

3. Additional related data collected that was not included in the current data package: 
Follow this DOI link https://doi.org/10.7910/DVN/EIHXVE to access up-to-date screen reader and description instructions related to this document at Harvard Dataverse. 

4. Are there multiple versions of the dataset? 
Yes. Lower-quality versions of these images are stored in a Google Drive account accessible through links in Brienne_Letterlocking_Data_2021.pdf. 


METHODOLOGICAL INFORMATION

1. Description of methods used for collection/generation of data: 
An archive of letters now held at Sound and Vision The Hague (and formerly part of the Museum voor Communicatie) was digitized by imaging experts Art in Print. In consultation with the original letters, Brienne_Letterlocking_Data_2021.pdf was created to gather all relevant information about these letters, including their letterlocking evidence. 

2. Methods for processing the data: 
N/a.

3. Instrument- or software-specific information needed to interpret the data: 
N/a. 

4. Standards and calibration information, if appropriate: 
N/a. 

5. Environmental/experimental conditions: 
N/a. 

6. Describe any quality-assurance procedures performed on the data: 
Jana Dambrogio, an experienced conservator familiar with the original letters, was present at the digitization. 

7. People involved with sample collection, processing, analysis and/or submission: 
Images created by Ivo Wennekes and Mark van der Graaff, photographers at the photo studio Art in Print in Zeeuws Archief in Middelburg, The Netherlands.
Digitization overseen by Jana Dambrogio and Koos Havelaar, former curator for the Brienne Collection.
Textual evidence analyzed by Rebekah Ahrendt, Nadine Akkerman, and David van der Linden.
Letterlocking evidence analyzed by Jana Dambrogio and Daniel Starza Smith. 
Spreadsheet created by Jana Dambrogio and Daniel Starza Smith. Spreadsheet reviewed and edited by Laura Bergemann.
ReadME file edited by Laura Bergemann. 


DATA-SPECIFIC INFORMATION FOR: 
Brienne_Letterlocking_Data_2021.pdf

1. Number of variables: 
There are eight variables in the spreadsheet.

2. Number of cases/rows: 
3150: 3148 items inventoried, one (1) trunk, one (1) inventory spreadsheet.

3. Variable List: 
File Name
Dataverse dataset DOI
Unlocking History # (UH#) / Letterlocking Unique Video # (LUV #)
Image File Name
Link to JPEG of letter
Letterlocking Format (LF)
Letterlocking Category (LC#), security score (Z,L,H), and manipulations 
Present Manifestation State

4. Missing data codes: 
N/a.

5. Specialized formats or other abbreviations used: 
Refer to the ReadMe tab for “Brienne_Letterlocking_Data_2021”.